87018408 has 32 divisors (see below), whose sum is σ = 241718400. Its totient is φ = 29006064.

The previous prime is 87018389. The next prime is 87018433. The reversal of 87018408 is 80481078.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201216 + ... + 201647.

It is an arithmetic number, because the mean of its divisors is an integer number (7553700).

Almost surely, 2^87018408 is an apocalyptic number.

It is an amenable number.

87018408 is an abundant number, since it is smaller than the sum of its proper divisors (154699992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87018408 is a wasteful number, since it uses less digits than its factorization.

87018408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402878 (or 402868 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 87018408 is about 9328.3657732745. The cubic root of 87018408 is about 443.1360115841.

The spelling of 87018408 in words is "eighty-seven million, eighteen thousand, four hundred eight".